Wouldn't this vary significantly from person to person, company to company? For example, we have a ton of starter scripts from previous projects and have an automate prompt generator, so a net new script would only take a matter of days, unless it's something very different than we've seen before.
Additionally, there are times that you want, newer people, to build something from scratch so they can have a better understanding of what they are doing and how UCCX scripting works. I guess I'm saying that what you're looking probably doesn't exist and if it does it will not apply to you very well.
david